Grease-cup plug.



G. H. HUDSON. GREASE 0UP PLUG.

APPLICATION FILED MAY 10, 1911. 1,022,317.

Patented Apr. 2, 1912.

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iIIIII WITNESSES z x INVENTOR ATTORNEYS llNlT STAfi ATFT FTD.

GEORGE HENRY HUDSON, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO JOHNMoTER-NAN, OF NEW YORK, N. Y.

GREASE-CUP PLUG.

To all whom it may concern:

Be it known that I, GEORGE HENRY Hunsox, a citizen of the United States,and a resident of the city of New York, borough of the Bronx, in thecounty and State of New York, have invented a new and ImprovedGrease-Cup Plug, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improved grease cupplug, more especially designed for use on connecting rods of locomotiveengines, and other machines and parts, and arranged to allow ofconveniently filling the cup with grease without removing the plug fromthe connecting rod or other part of which it forms a permanent fixture.

For the purpose described, the plug is permanently fastened in place,and is pro vided with a bore, and a cover, the pivot of which forms thefulcrum for a link connected with a hand lever carrying a plungeradapted to pass into the bore of the plug to force the grease down inthe plug.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a sectional side elevation of the grease cup plug as appliedto one end of a connecting rod; Fig. 2 is a side elevation of the greasecup plug applied to the other end of the connecting rod, the wrist pinbeing shown in section; and Fig. 3 is a plan view of the same.

Each end of the connecting rod A shown in the drawings is provided ontop with a boss B in which screws a plug C provided with a flange Cresting on top of the boss B, and the said plug C is provided with acentral bore C for the reception of the grease to be forced down intothe cup A formed in the connecting rod and having a small opening Aleading to the wrist pin A as plainly indicated in Fig. 1. The upper endof the bore C is adapted to be closed by a cover D mounted to swing on apivot E screwing in the flange C and terminating in a pin E engaging arecess B formed in the boss B, so as to hold the plug C againstaccidentally unscrewing in the boss B.

Specification of Letters Patent.

Application filed May 10, 1911.

Patented Apr. 2, 1912.

Serial No. 626,158.

When the cover D is open then the grease is passed into the bore C andin order to force this grease from the bore G into the cup A, use ismade of a plunger F adapted to pass into the bore C and pivotallyconnected with a lever G provided at one end with a pivoted link Hterminating in a hook H adapted to engage an eye E formed in the upperend of the pivot E for the cover D. Thus by the operator engaging thelink H with the eye E and passing the plunger F into the bore C andbearing down on the lever G, the plunger forces the grease down in thebore 0 for filling the cup A.

It is understood that after the grease has been forced down, and thelever G has been swung upward to disengage the plunger F from the bore Cone may then refill the upper end of the bore C with grease, and againengage the plunger F with the bore C and bear down on the lever G. Thisoperation is repeated as often as is necessary until the cup A iscompletely filled with grease, and when this has been done the lever Gis swung upward to disengage the plunger F from the bore C and then thelink H is unhooked from the eye E after which the cover D is swung intoa closed position over the bore C and fastened in place by a screw Iscrewing in the flange C and engaging a recess D in the free end of thecover D. The lever G is provided with a wrench head G for turning thecoverfastening screw I to unlock the cover D, or to fasten the same inplace on the flange C.

It is understood that by the arrangement described the cup can be filledwith grease and without removing the plug from connecting rod, of whichthe plug really forms a permanent fixture.

It will also be noticed that the cup can be readily filled at any timewith grease by unlocking the cover D and swinging the same into an openposition and then applying the link H to the eye E and making use of thelever G and plunger F as above described.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. The combination with a grease cup, of a plug therefor having a bore,a cover for opening and closing said bore, and a stud forming, with saidcover, a permanent part of the plug, in combination with a plungeradapted to pass into the bore when the latter is open, and a lever onwhich the plunger is pivoted provided also with a member engageable withsaid stud.

2. The combination with a grease cup of a plugvtherefor having a bore, apivot on the grease cup and provided with an eye, and a cover mounted toswing on the said pivot for closing or opening the bore, in combinationwit-h a plunger adapted to pass into the said bore, a lever on which theplunger is pivoted, and a link pivotally connected with the said leverand provided with a hook adapted to hook onto the said eye.

3. The combination with a grease cup, of a plug therefor having a flangeand an eX- terior thread for screwing the plug in position on a member,the plug having a bore for the reception of the grease, a pivot screwingin the said flange and having a pin engaging a recess in the said memberto hold the plug against unscrewing, a cover mounted to swing on thesaid pivot and over the top of the flange, and means for fasteningCopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

the free end of the cover in position on the said flange.

4. The combination with a grease cup, of a plug therefor having a flangeand an exterior threadfor screwing the plug in position on a member theplug having a bore for the reception of the grease, a pivot screwing inthe said flange and having a pin engaging a recess in the said member tohold the plug against unscrewing, the said pivot having an eye, and acover mounted to swing on the said pivot to open and close the saidbore, in combination with a plunger adapted to engage the said bore atthe time the cover is open a lever on which the plunger is pivoted, anda link pivoted on the said lever and having a hook adapted to engagethesald Washington, D. G.

